// If you want to use Phoenix channels, run `mix help phx.gen.channel`
// to get started and then uncomment the line below.
// import "./user_socket.js"

// You can include dependencies in two ways.
//
// The simplest option is to put them in assets/vendor and
// import them using relative paths:
//
//     import "../vendor/some-package.js"
//
// Alternatively, you can `npm install some-package --prefix assets` and import
// them using a path starting with the package name:
//
//     import "some-package"
//

// Include phoenix_html to handle method=PUT/DELETE in forms and buttons.
import "phoenix_html"
// Establish Phoenix Socket and LiveView configuration.
import { Socket } from "phoenix"
import { LiveSocket } from "phoenix_live_view"
import topbar from "../vendor/topbar"


let Hooks = {}

let scrollAt = () => {
    let scrollTop = document.documentElement.scrollTop || document.body.scrollTop
    let scrollHeight = document.documentElement.scrollHeight || document.body.scrollHeight
    let clientHeight = document.documentElement.clientHeight

    return scrollTop / (scrollHeight - clientHeight) * 100
}

Hooks.InfiniteScroll = {
    page() {
        return this.el.dataset.page
    },
    mounted() {
        this.pending = this.page()
        window.addEventListener("scroll", e => {
            if (this.pending == this.page() && scrollAt() > 90) {
                this.pending = this.page() + 1
                this.pushEvent("load-more", {})
            }
        })

        this.handleEvent("highlight", ({id}) => {
            new_message = document.getElementById(`messages-${id}`)
            if (new_message) {
                new_message.classList.add("highlight")
            }
        })
    },
    reconnected() { this.pending = this.page() },
    updated() { this.pending = this.page() }
}

let csrfToken = document.querySelector("meta[name='csrf-token']").getAttribute("content")
let liveSocket = new LiveSocket("/live", Socket, { hooks: Hooks, params: { _csrf_token: csrfToken } })

// Show progress bar on live navigation and form submits
topbar.config({ barColors: { 0: "#29d" }, shadowColor: "rgba(0, 0, 0, .3)" })
window.addEventListener("phx:page-loading-start", _info => topbar.show(300))
window.addEventListener("phx:page-loading-stop", _info => topbar.hide())

// connect if there are any LiveViews on the page
liveSocket.connect()

// expose liveSocket on window for web console debug logs and latency simulation:
// >> liveSocket.enableDebug()
// >> liveSocket.enableLatencySim(1000)  // enabled for duration of browser session
// >> liveSocket.disableLatencySim()
window.liveSocket = liveSocket

